Alcohol-cock



(Numan.)

G. o. JslLULFoRn;V

Patented sept. 19, 1882 ATTDRNEYS.

' UNITED 4STAT-.ES

PATENT OFFICE.

CLARENCE C. MULECRD, F srEEAroR, iLLiNoIs.

ALCOHOL-cock.l

SPECIFICATION lforming part ef Letters Patent-Ne 264,556, datedseptember 19, l1882.

` Application filed February 24, 18H2. (No model.) l

To all whom it lmay concern Beit knownthat I, CLARENCE C. MULFORD,

of Streatoiyin the county ot' La Salle and State of 1.linois,haveinvented a new and Improved Alcohol-Cock, of which the following is afull, clear, and exact description.

This invention relates to alcohol-cocks used in dissolving thehydrocarbon substances in gas service-pipes, and has for its object toprevent the loss and waste of gas and alcohol during the operation. Y'

The invention consists in a closed' vessel, adapted to containalcohol,connected with the gas service-pipe and provided witha three-waycock for establishing communication with the gas service-pipe or betweentheV gas servicepipe and a pipe or tube leading from the cock up to thetop of the closed vessel, so that the gas issuing from a test-cock onthe vessel can be ignited when the direct communication between vthe gasservice-pipe and the vessel is interrupted, this test-cock being used toascertain if the obstructionsin the service-pipe have been removed bythe alcohol flowing from the vessel into the service-pipe for thepurpose of dissolving these obstructions, consisting of congealedhydrocarbon vapors. 'lhe alcohol is iilled into the vessel'through atube' provided with a circular loop or bend, whereby a trap or seal forpreventing the escape of gas is formed.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the tgures.

Figure l is a longitudinal sectional elevation of myimprovedalcohol-cock. Figs.2 and 3 are cross-sectional elevations of the lowerpart or cup, the plug being shown in different positions.

A cup, A, preferably made of metal, is provided at its upper edge withan internal recess, a, to receive the lower edge of a cylindricalvessel, B, of glass, metal, or other suitable material. A top plate or.cap,-G, iits on the vessel B, and is provided with agas-burner, D,provided with a cock, E, and communicating with the interior of' thevessel B. VVThis cap is also provided with an internally-threadedupwardly-projecting neck or collar, F, into the lower end of' which aseal-tube, G, is screwed, which seal-tube reaches vdown almost to thebottom of thc cup A,'a'nd is provided at or near its middle with acircular bend or loop, H, to form a trap or'siphon `for the-purpose ofpreventing the escape of gas. A screw-plug, J, or a cap or equivalent isscrewed in thc u pvper end of the neck F. -The cup A is connected withthe gas service-pipe K. The cup is provided with a.tli1ec-waycock,L,ofany Vsuitable construction, by means of which the Yvessel B can beplaced in communication with the service-pipe or with a pass pipe ortube, M, extending from thc cock L up to the top of the vessel B,entering the same at the side or on top, as may be desired; and,further, the vessel B can be cut oftl from the pass-pipe M and theservice-pipe K by meansof the cock L. It' the vessel B is made of metalor other opaque material, it will have' to be provided with a glassgage-tube, N, or a glass gagestrip.

The operation is asfollow's: The cap 6r plug J is unscrewed and thealcohol is iilled into the vessel B through the seal-tube G, the plug Oof the cock having been turned one-eighth, so as to interrupt thecommunication of the vessel B with the service-pipe K and the passtubeM, asshowu in Fig. 2. A is lled the cap or plug J is screwed on the neckF again. 1f the plug O of the cock L is turned to establish acommunication between 'the vessel B and the service-pipe K, as shown inFig. 1,the alcohol will flow from the vessel B into the service-pipe andwill dissolve the hydrocarbon substance which closes the pipe andobstructs the passage of the gas. After a certain quantity of alcoholhas been admit- .ted into the service-pipe the plug O is Aturned 'isopened and a light applied to the burner D.

It' the gas can be ignited at the burner D, the service-pipe is clearand the substances have beeniremoved; but if the gas cannot be' ignitedthe service-pipe is still lobstructed and VV-hen the vessel'v anadditional quantity of alcohol must be admitted into the service-pipe,and this must be repeated until this pipe is cleared-that is, until thegas will burn at the test-burner D.

I have arranged a loop or trap, H, in the pipe G, so that in case thereis no alcohol in the vessel B, or in case the level of the alcohol isbelow the bottom of the tube G, and the plug or cap J is unscrewed nogas can escape from the vessel B.

By means of my improved alcohol-cock above described the alcohol can beadmitted into the pipe K in very small quantities, and a test can bemade very easily by means of the burner D every time a quantity ofalcohol has been admitted into the pipe K, and thus a waste of alcoholis prevented. As 11o gas can escape from the vessel B while tilling thesame,a waste ot' gas is also prevented, and consequently the obnoxioussmell of gas cannot penetrate the house. The several parts must bejoined very accurately, so that no leakage ot the gas or alcohol cantake place.

Having thus described my invention, I claim as new and desire to secureby Letters Patentl. An alcohol-cock for gas-pipes, made substantially asherein shown and described, and consisting of an alcohol and gasreceiver provided with a self-sealing supply-pipe, a threeway cock,gas-pipe, and gas-burner, whereby the alcohol may be introduced into thereceiver and gas-pipe without the escape of gas,and gas may be admittedinto the receiver and tested at the burner when desired,as set forth.

2. In an alcohol-cock, the combination, with the cup A and the vessel B,of the filling-tube G, provided with a loop or trap, H, substantially asherein shown and described, and for the purposes set forth.

3. In an alcohol'cock, the combination, with the cup A and the vessel B,of the three-way cock L and the pass-tube M, extending from the cock Lto the top of the vessel B, substantially as herein shown and described,and for the purpose set forth.

4. In an alcoholcock, the combination,with the cup A and the vessel B,of the three-way cock L, the pass-tube M, extending from the cock L tothe top of the vessel B, and ot' the gas-burner D, substantially asherein shown and described, and for the purpose set forth.

CLARENCE 0. MULFORD.

Witnesses:

JOHN EssiNG'roN, ELWooD MULFORD.

